Method for use in the manufacture of shoes



April 15, 1924.'

F. H. WARREN METHOD FOR USE IN THE MANUFACTURE OF SHOES Filed Feb. 24, 1920 Patented Apr. is, was,

teats FItAnK' n. weaned, ca ease ents, mssacna aess, niss e'non To ent ant snon MACHINERY CORPORATION, on PATnRso'N, new annsn'Y', A; oonrona i ron on NEW METHOD non" use in THE meanness or stress;

Application filed February 24:, 1920'. Serial No. 380,691.

T 0' all whom it may concern.

Be it known that I, FRANK H. WARREN, a citizen of the United States, residing at Swamp'scott, in the county of Essex and State of Massachusetts, have invented certain Improvements in Methods for Use in the Manufacture of Shoes, of which the followin' description, in connection with the accompanying drawings, is a specificanon, like reference characters on the drawings indicating like parts in the several figures.

Tl i'is invention relates to methods for use in the manufacture of boots and shoes and particularly to methods of lengthening soles, the present method being especially applicable to lengthening block soles.

The present high cost of shoe materials, particularly shoe leather, has rendered it necessary to employ every possible expedient consistent with the production of a serviceable and saleable product for economizing in expensive material. 7

An object of the present invention is to provide an improved method of lengthening soles so that soles intended for one size of sl'ro'e may be rendered available for shoes of a larger size and at the same time to improve the soles in some respects without detracting in any way from their serviceability.

In the practice of the present invention a sole is cut in two transversely in such a: nanner that when one of the parts is reversed and placed in abutting relation to the other part the total length of the sole will be increased and a recess will be formed on one face of the sole suitable to be filled with cheap or scrap material to form a sole of urn-form thickness and of increased length.

The abutting portions of thesole as well as the portions of the sole which abut the filling piece aind the filling piece itself are preferably formed at an angle to the plane of the tread face of the sole such that when pressure is applied to the sole, for instance in the heeling' operation, all the joints between the parts will be closed and checking or opening of the joints between the abutting faces will be avoided.- Gonve'nient sole parts.-

- sole substantially equal to the inclination of the first cut. The said cuts are preferably connected by a transverse cut parallel to the sole faces and located half way between them, the length of this cut longitudinally of the sole and the distance between the first cuts at the centerof the sole being equal to the amount which it isdesi'r'ed to lengthen the sole. It will be understood, of course, that the cuts described may be made in any order or simultaneously. The severed rear portion of the sole is turned the other side relatively to the other part of the sole and the face of the rear part of the sole, formed by the first cut, is placed in abutting relation to the face of the forward part of the sole formed by the second cut. The placing of the parts in this position lengthens the sole by the amount of longitudinal separation of the first two outs and forms on the bottom of the sole a recess, half as deep as the sole thickness, having inclined front and rear walls. An appropriate filling such as" a suitably formed filling piece is placed in this recess to restore the sole to uniform thickness and is secured to the parts of the sole by any suitable means, for example by cement or by staples placed preferably in' position to straddle the joints of the In the drawing,

Fig. 1 is a perspective view representing a block'sole flesh side up with its rear portion severed by a transverse cut'm'ade in accordance with. the present invention;

c 2 is an exploded view in'perspective of the rear part of the sole with one portion reversed so as to be grain side up and showing; the filling piece which is inserted in the recess formed by the reversal of the rear partof the sole,

verse recess in the sole thus formed with sultable material, and securing the parts together.

2. That improvement n1 methods of lengthening soles which consists in cutting the sole half way through from the grain side in a direction transversely of the sole on a line located at the rear of the heel breast, cutting the sole half way through from the flesh side parallel with the first cut on .a line disposed a substantial distance toward the heel end of the sole, connecting the two cuts by a cut parallel with the tread face of the sole completelyto sever the sole, reversing one of the parts, placing the ends in abutting relation, filling the recess in the sole thus formed, and securing the parts together to form a completed sole of greater length and having a grain surface on the portion of the sole next the heel seat of the shoe and a grain surface on the forepart of the sole.

8. That improvement in methods of lengthening soles which consists in severing the rear part of the sole by a cut extending transversely of the sole and from the grain side in a plane inclined toward the rear of the sole half way through the sole, thence parallel to the bottom face of the sole for a distance equal to the amount the sole is to be lengthened and thence toward the top face of the sole in a plane inclined toward the forward part of the sole, the inclination being equal to the rearward inclination of said first portion of the out, then reversing the severed rear portion, abutting the severed ends filling the transverse recess thus formed, and securing the parts together to form a lengthened sole of the thickness of the original sole.

at. That improvement in methods of lengthening soles which consists in severing a solo by a transverse cut extending from a face of the sole part way through from one side, thence parallelwith the faces of the sole for a substantial distance and thence out to the other side of the sole, reversing one of the parts relatively to the other, abutting the cut faces, filling the recess in the sole, and securing the parts together.

5. That improvement In methods of lengthening soles which consists in severing a sole. by a transverse cut extending from edge to edge of the sole half way through the solo from the'grain side in an upward and rearward direction, thence parallel with the face of the sole for a substantial distance and thence out to the flesh side of the sole in an upward and forward direction, reversing one of the parts relatively to the other, abutting the cut faces, inserting a filling piece in the recess in the sole, and securing the parts'together.

6. That improvement in methods of lengthening soles which consists in severing the sole by straight cuts transversely of the sole in such manner that when one part of the sole is reversed with respect to the other part and the endsabntted the sole will be lengthened and a recess formed, then reversing one-of the parts, abutting the severed ends, and securing a filler in the recess to restore the sole to uniform thickness throughout its area.

7. That improvement in methods of lengthening soles which consists in severing the rear portion of the sole by a cut portions of which are obliquely inclined to the planes of the top and bottom faces of the sole, reversing one of the severed parts relatively to the other, abutting the parts, and securing a filling piece in the recess thus formed in the sole.

8. That improvement in methods of lengthening soles which consists in severing a sole on transverse planes two of which are at right angles to each other, reversing one part of the sole relatively to the other, abutting the ends, restoring the sole to uniform thickness, and securing the parts together.

9. That improvement in methods of lengthening soles which consists in severing a sole on transverse planes one of which is parallel to the top and bottom faces of the sole, reversing one of the parts, abutting the ends, and restoring the sole to uniform thickness.

10. That improvement in methods of lengthening soles which consists in severing a sole on transverse planes two of which are equally and oppositely inclined to the top and bottom faces of the sole and one of which is parallel to said faces, reversing one of said parts relatively to the other, abutting their cut ends, and restoring the sole to uniform thickness.

11. That improvement in methods of lengthening soles which consists in severing a sole on transverse planes two of which are inclined to the top and bottom faces of the sole, reversing one of the parts, abutting the cut ends, and restoring the sole to uniform thickness by the addition of suitable material.

12. That improvement in methods of lengthening soles which consists in severing a sole on transverse planes in zigzag relation to each other, reversing one of the parts relatively to the other, abutting the ends, restoring the sole to uniform thickness, and securing the parts together.

13. That improvement in .methods of lengthening soleswhich consists in seven ing the sole by a cut in three planes, one plane being parallel to the top and bottom faces of the sole and the other planes being inclined to said parallel plane, reversing one of the severed portions relatively ll l to the other, abutting the cut ends, and restoring the thickness of the sole.

14-. That improvement in methods of lengthening soles which consists in sever- 5 ing a sole by a transverse cut so located that when one part of the severed sole is reversed with respect to the other part and the out ends abutted the sole will be lengthened and a recess formed, reversing one part, abutting the ends, and filling the recess to restore the sole to uniform thirrkness. In testimony whereof I have signed my name to this specification.

FRANK I-I. 'VVARREN. 

